Question

8 × 10-³ is how many times as great as 4 × 10-⁶ ?

a) 2 × 10⁹
b) 2 × 10-³
c) 2 × 10-⁹
d) 2 × 10³

Answer 1

8 × 10^(-³) is 2 × 10^9 times as great as 4 × 10^(-⁶).

Step-by-step explanation:

To find how many times 8 × 10-³ is greater than 4 × 10-⁶, we can divide the two numbers:

8 × 10-³ / 4 × 10-⁶ = (8/4) × (10-³ / 10-⁶) = 2 × 103-(-6) = 2 × 109

Therefore, 8 × 10-³ is 2 × 109 times as great as 4 × 10-⁶.